Envelop



W. E. SWIFT'.

ENVELOP.. APPLICATION msn JUNE 25. 1919.

1,371,332. Patented Mar. 15, 1921.

\ .umn

mum".

| l I HIIHHII UNITED STATES PATENT OFFICE.

VILLARD E. SWIFT, OF WORCESTER, MASSACHUSETTS, ASSIGNOR T0 UNITED STATESENVELOPE COMPANY, OF SPRINGFIELD, MASSACHUSETTS, A CORPORATION OF MAINE.

ENVELOP.

Specification of Letters Patent.

Patented Mar. 15, 1921,.y

Application led .Tune 25, 1919. Serial No. 306,642.

,citizen of the United States, residing at Vorcester, in the county ofWorcester and Commonwealth of Massachusetts, have invented a new anduseful Improvement in Envelops, of which the following, together withthe accompanying drawings, is a speciication.

My present invention relates to that class of envelops which areprovided with a loose or removable flapl which entitles them to passthrough the mail at a reduced rate, such envelops sometimes being knownas penny saver envelops.

In the accompanying drawings,

Figure 1 represents an envelop having its seal flap closed and aremovable flap withdrawn from the end of the envelop.

Fig. 2 represents the blank from which the envelop is made.

Fig. 3 represents the blank with the side iiaps folded, with gum appliedthereto and also to the seal flap.

Similar reference characters refer to similar parts in the differentfigures.

Referring to Fig. 2, which represents the blank from which the envelopis made, 1 denotes the rectangular body portion of the envelop, 2denotes the back flap, 3 the seal iiap, 4 a narrow side flap at one endof the body portion, 5 a wider side flap at the opposite end of theenvelop, and 6 a removable iap to allow the inclosure in the envelop tobe inspected.

In forming the envelop from the blank represented in Fig. 2, the sideiiaps 4, 5 and 6 are folded on the broken lines 7, 8 and 9, asrepresented in Fig. 3. Gum is applied to the seal flap at 10, to thesurface of the side flap 4 as represented at 11, Fig. 3, and

also at 12 to the side flap 5. The back flap 2 is then folded on thebroken line 13, and the seal iiap 3 is creased on the broken line 14.The side iiap 6 is cut away at 15 on an oblique line to expose a portionof the back flap 2, so that when the back flap 1s folded on the brokenline 13 the gummed surface 12 on the side flap 5 will be brought intocontact with the back iap 2 in the'space indicated by the broken line16,

When the envelop is completed the edge of the back flap 2 will adhere tothe gummed surface 11 of the side flap 4, and the back flap 2 will alsobe brought'into contact with the spot of gum 12 on the side flap 5,causing the back flap to adhere to the side iaps 4and 5, leaving theflap 6 vunattaehed and capable of being withdrawn from the -end of theenvelop into the -position shown by the broken lines 17, Fig. 1. Whenthe envelop is completed an inclosure may be inserted, and the seal Hap3 turned over and attached to the back flap by its gummed surface 10, asrepresented in Fig. l.

The side flap 6 when folded is in alinement with side flap 5, as shownin Fig. 3, but is separated therefrom by an oblique incision 18, havinga portion of the side flap 5 overlapping the back Hap 2. When the backflap is folded on the broken line 13, the fold extends across the sideHap 5. The side flaps 4 and 5 when the back flap 2 has been folded willinclude the inclosure and prevent it from accidental displacement, whenthe removable flap 6 has been withdrawn into the position shown by thebroken lines 17, Fig. 1.

I claim,

1. An envelop comprising a rectangular body portion, a gummed seal iap,a back flap, a side flap folded upon one end of said body portion,adhesive material applied to the exposed surface of said side iap, asecond side iiap folded upon the opposite end of said body portion, withone end overlapping said back flap, an adhesive material applied to arestricted area of. said second side iap, and a removable ungummed iapfolded upon said back iap, having a portlon cut away to expose a portionof the back flap alining with the adhesive material on' said second sideflap, with said back flap folded upon and attached to the adhesivesurfaces of said side flaps.

A2. An envelop formed from a blank having a body portion, a seal flapprojecting from one edge of said body portion, a back flap projectingfrom the opposite edge of said body portion, a side flap projecting fromsaid body portion, a second side Hap projecting from the body portionand from a portion of said back Hap, and a third flap projecting fromthe back Hap in alinernent with said second side flap and having aportion removed to expose a portion of the back flap to Contact Withsaid second side ap, adhesive material applied to said seal Hap and tothe contacting surfaces of the side flaps with the back flap when theiaps are folded upon the body portion.

Dated this 16th day of June, 1919.

WILLARD E. SWIFT. Witnesses:

NELLIE WHALEN, PENELOPE COMBERBACH.

